GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Chevrolet 🢒 2005 🢒 Corvette 🢒 Accessories 🢒 Cellular Communication 🢒 OnStar Schematics
Figure 1:

Antenna, DLC, Ground, Power and User Inputs
Object Number: 1410255 Size: FS
Master Electrical Component List
OnStar Description and Operation
Control Module References
Audio Output
Fuse Block-Underhood Fuse; BATT5, BCM Fuses; TILT TELE SW/ MEM SEAT MOD, DRIV DR SW, IGNITION SW/ INTR SENS, ONSTAR, TONNEAU PULLDOWN ACTUATOR
Class 2
GMLAN - M/T
GMLAN - A/T
Inside Rearview Mirror Schematics
I/P Dimmer Switch, Underhood, Vanity Mirrors, Courtesy, I/P Compartment and Inside Rearview Mirror Lamps
G202 1 of 2
G104 and G106
Figure 2:

Audio Output
Object Number: 1410258 Size: FS
Master Electrical Component List
OnStar Description and Operation
Control Module References
Antenna, DLC, Ground, Power and User Inputs